Wall Street was pointing toward gains in premarket trading Wednesday as markets focus on the latest corporate earnings ahead of the Federal Reserve's interest rate decision this afternoon.

Futures for the S&P 500 were up 0.3% before the opening bell, while futures for the Dow Jones Industrial Average rose 0.2%. Nasdaq futures were 0.5% higher. A day earlier, all three indexes set all-time highs for a third straight session.

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